That leads to another question.
Why are the Fire bottles Spherical.
Both the Engine & APU Fire bottles on the B737s are spherical.
And so is the Lavatory Fire extinguisher bottle spherical too.
What shape is the Fire bottle for the Bulk cargo compartments?.
Anyone.
regds
HAWK.

Most aircraft are using Halon 1301 for the suppression systems. I do not work in these systems directly. I have worked on Ramp euipment such as De-icers which have a fire system. However I have seen these system first hand.